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          <h1 class="post-title" itemprop="name headline">【第九章】一步一步学习SpringBoot2——集成Quartz定时器和发送Email</h1>
        

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        <p>本文为《一步一步学习Spring Boot 2》的第九章学习笔记，主要内容为SpringBoot集成Quartz定时器和发送Email</p>
<p>本书博客地址：<a href="https://blog.csdn.net/huangwenyi1010?t=1" target="_blank" rel="noopener">https://blog.csdn.net/huangwenyi1010?t=1</a></p>
<p>源代码地址：<a href="https://gitee.com/aiolos123/springboot-step-by-step" target="_blank" rel="noopener">https://gitee.com/aiolos123/springboot-step-by-step</a></p>
<a id="more"></a>
<h1 id="注意事项"><a href="#注意事项" class="headerlink" title="注意事项"></a>注意事项</h1><ol>
<li><h1 id="Quartz定时器简介"><a href="#Quartz定时器简介" class="headerlink" title="Quartz定时器简介"></a>Quartz定时器简介</h1></li>
<li><p>Quartz是一个完全由Java编写的开源任务调度的框架，通过触发器设置作业定时运行规则，控制作业的运行时间。</p>
</li>
<li><p>Quartz定时器作用很多，比如：定时发送信息、定时生成报表等等。</p>
</li>
<li><p>Quartz框架主要核心组件包括：调度器Scheduler、触发器Trigger、作业Job接口。调度器作为作业的总指挥，触发器作为作业的操作者，作业为应用的功能模块。其关系如下图所示：<br><img src="/blog/images/20190725165216878.jpg" alt="Quartz框架主要核心组件"></p>
</li>
<li><p>Job是一个接口，该接口只有一个方法execute，被调度的作业（类）需实现该接口中execute()方法，JobExecutionContext类提供了调度上下文的各种信息。每次执行该Job均重新创建一个Job实例。Job的源码如下所示：</p>
<figure class="highlight routeros"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">public<span class="built_in"> interface </span>Job &#123;</span><br><span class="line">    void execute(JobExecutionContext var1) throws JobExecutionException;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
</li>
<li><p>Quartz在每次执行Job时，都重新创建一个Job实例，所以它不直接接受一个Job的实例，相反它接收一个Job实现类，以便运行时通过newInstance()的反射机制实例化Job。因此需要通过一个类来描述Job的实现类及其它相关的静态信息，如Job名字、描述、关联监听器等信息，JobDetail承担了这一角色。</p>
</li>
</ol>
<ol start="6">
<li><p>JobDetail用来保存我们作业的详细信息。一个JobDetail可以有多个Trigger，但是一个Trigger只能对应一个JobDetail。</p>
</li>
<li><p>Trigger触发器描述触发Job执行规则。主要有SimpleTrigger和 CronTrigger这两个子类。当仅需触发一次或者以固定时间间隔周期执行，SimpleTrigger是最适合的选择；而CronTrigger则可以通过Cron表达式定义出各种复杂时间规则的调度方案：如每早晨9:00执行，周一、周三、周五下午5:00执行等。Cron表达式定义如下：</p>
<figure class="highlight tap"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br></pre></td><td class="code"><pre><span class="line">CronTrigger配置格式:</span><br><span class="line">格式: [秒] [分] [小时] [日] [月] [周] [年]</span><br><span class="line">0<span class="number"> 0 </span>12 * * ?           每天12点触发 </span><br><span class="line">0<span class="number"> 15 </span>10 ? * *          每天10点15分触发 </span><br><span class="line">0<span class="number"> 15 </span>10 * * ?          每天10点15分触发  </span><br><span class="line">0<span class="number"> 15 </span>10 * * ? *        每天10点15分触发  </span><br><span class="line">0<span class="number"> 15 </span>10 * * ?<span class="number"> 2005 </span>    2005年每天10点15分触发 </span><br><span class="line">0 *<span class="number"> 14 </span>* * ?           每天下午的 2点到2点59分每分触发 </span><br><span class="line">0 0/5<span class="number"> 14 </span>* * ?         每天下午的 2点到2点59分(整点开始，每隔5分触发)  </span><br><span class="line">0 0/5 14,18 * * ?        每天下午的 18点到18点59分(整点开始，每隔5分触发)</span><br><span class="line">0 0-5<span class="number"> 14 </span>* * ?            每天下午的 2点到2点05分每分触发 </span><br><span class="line">0 10,44<span class="number"> 14 </span>?<span class="number"> 3 </span>WED        3月分每周三下午的 2点10分和2点44分触发 </span><br><span class="line">0<span class="number"> 15 </span>10 ? * MON-FRI       从周一到周五每天上午的10点15分触发 </span><br><span class="line">0<span class="number"> 15 </span>10<span class="number"> 15 </span>* ?            每月15号上午10点15分触发 </span><br><span class="line">0<span class="number"> 15 </span>10 L * ?             每月最后一天的10点15分触发 </span><br><span class="line">0<span class="number"> 15 </span>10 ? * 6L            每月最后一周的星期五的10点15分触发 </span><br><span class="line">0<span class="number"> 15 </span>10 ? * 6L 2002-2005  从2002年到2005年每月最后一周的星期五的10点15分触发</span><br><span class="line">0<span class="number"> 15 </span>10 ? * 6<span class="comment">#3           每月的第三周的星期五开始触发 </span></span><br><span class="line">0<span class="number"> 0 </span>12 1/5 * ?            每月的第一个中午开始每隔5天触发一次 </span><br><span class="line">0<span class="number"> 11 </span>11<span class="number"> 11 </span>11 ?           每年的11月11号 11点11分触发(光棍节)</span><br></pre></td></tr></table></figure>
</li>
<li><p>Scheduler负责管理Quartz的运行环境，Quartz它是基于多线程架构的，它启动的时候会初始化一套线程，这套线程会用来执行一些预置的作业。Trigger和JobDetail可以注册到Scheduler中。Scheduler可以将Trigger绑定到某一JobDetail中，这样当Trigger触发时，对应的Job就被执行。</p>
</li>
<li><p>Scheduler拥有一个SchedulerContext，它类似于ServletContext，保存着Scheduler上下文信息，Job和Trigger都可以访问SchedulerContext内的信息。Scheduler使用一个线程池作为任务运行的基础设施，任务通过共享线程池中的线程提高运行效率。</p>
</li>
</ol>
<h1 id="SpringBoot集成Quartz定时器"><a href="#SpringBoot集成Quartz定时器" class="headerlink" title="SpringBoot集成Quartz定时器"></a>SpringBoot集成Quartz定时器</h1><h2 id="引入依赖"><a href="#引入依赖" class="headerlink" title="引入依赖"></a>引入依赖</h2><figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">&lt;!-- quartz定时器 --&gt;</span> </span><br><span class="line"><span class="tag">&lt;<span class="name">dependency</span>&gt;</span> </span><br><span class="line">    <span class="tag">&lt;<span class="name">groupId</span>&gt;</span>org.quartz-scheduler<span class="tag">&lt;/<span class="name">groupId</span>&gt;</span> </span><br><span class="line">    <span class="tag">&lt;<span class="name">artifactId</span>&gt;</span>quartz<span class="tag">&lt;/<span class="name">artifactId</span>&gt;</span> </span><br><span class="line">    <span class="tag">&lt;<span class="name">version</span>&gt;</span>2.2.3<span class="tag">&lt;/<span class="name">version</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">dependency</span>&gt;</span></span><br></pre></td></tr></table></figure>

<h2 id="创建定时器"><a href="#创建定时器" class="headerlink" title="创建定时器"></a>创建定时器</h2><p>创建定时器的方法有两种，1）使用XML配置文件的方式。2）使用注解的方式。</p>
<p>使用XML配置文件的方式请见：<a href="https://blog.csdn.net/huangwenyi1010/article/details/82822596" target="_blank" rel="noopener">https://blog.csdn.net/huangwenyi1010/article/details/82822596</a></p>
<blockquote>
<p>本文只讲解注解的方式，因为这种方式不需要任何配置文件，简单高效！</p>
</blockquote>
<p>使用注解的方式创建定时器，只需要创建一个定时器类，加上如下的三个注解就搞定了：</p>
<pre><code>@Configurable：加上此注解的类相当于XML配置文件，可以被Spring Boot扫描初始化。 
@EnableScheduling：通过在配置类添加@EnableScheduling来开启对计划任务的支持，然后在要执行计划任务的方法上注解@Scheduled，声明这是一个计划任务。 
@Scheduled：注解为定时任务，cron表达式里写执行的时机。</code></pre><p>自定义定时器类的具体代码如下：</p>
<figure class="highlight groovy"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">@Component</span></span><br><span class="line"><span class="comment">//@Configurable：加上此注解的类相当于XML配置文件，可以被Spring Boot扫描初始化。</span></span><br><span class="line"><span class="meta">@Configurable</span></span><br><span class="line"><span class="meta">@EnableScheduling</span></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">SendMailQuartz</span> &#123;</span></span><br><span class="line"></span><br><span class="line">    <span class="comment">//日志对象</span></span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> Logger logger = LogManager.getLogger(SendMailQuartz.<span class="keyword">class</span>);</span><br><span class="line"></span><br><span class="line">    <span class="comment">//每5秒执行一次</span></span><br><span class="line">    <span class="meta">@Scheduled</span>(cron = <span class="string">"*/5 * *  * * * "</span>)</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">void</span> reportCurrentByCron()&#123;</span><br><span class="line">        logger.info(<span class="string">"定时器运行了!!!"</span>);</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

<p>重新启动项目，在Intellij IDEA控制台中可以看到如上图所示的信息，证明在Spring Boot中整合Quartz定时器成功。<br><img src="/blog/images/20190725170520926.jpg" alt="整合Quartz定时器成功"></p>
<h1 id="SpringBoot集成发送Email功能"><a href="#SpringBoot集成发送Email功能" class="headerlink" title="SpringBoot集成发送Email功能"></a>SpringBoot集成发送Email功能</h1><h2 id="Email介绍"><a href="#Email介绍" class="headerlink" title="Email介绍"></a>Email介绍</h2><p>邮件发送与接收的过程如下：</p>
<ol>
<li>发件人使用SMTP协议传输邮件到邮件服务器A；</li>
<li>邮件服务器A根据邮件中指定的接收者，投送邮件至相应的邮件服务器B；</li>
<li>收件人使用POP3协议从邮件服务器B接收邮件。</li>
</ol>
<blockquote>
<p>SMTP（Simple Mail Transfer Protocol）是电子邮件（Email）传输的互联网标准，定义在RFC5321，默认使用端口25；<br>POP3（Post Office Protocol - Version 3）主要用于支持使用客户端远程管理在服务器上的电子邮件。定义在RFC 1939，为POP协议的第三版（最新版）。<br>这两个协议均属于TCP/IP协议族的应用层协议，运行在TCP层之上。</p>
</blockquote>
<p>Spring提供了非常好用的JavaMailSender接口实现邮件发送。在Spring Boot的Starter模块中已为此提供了自动化配置。</p>
<h2 id="集成Email的步骤"><a href="#集成Email的步骤" class="headerlink" title="集成Email的步骤"></a>集成Email的步骤</h2><ol>
<li><p>引入依赖</p>
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">&lt;!--Spring Boot中集成Mail--&gt;</span></span><br><span class="line"><span class="tag">&lt;<span class="name">dependency</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">groupId</span>&gt;</span>org.springframework.boot<span class="tag">&lt;/<span class="name">groupId</span>&gt;</span></span><br><span class="line">    <span class="tag">&lt;<span class="name">artifactId</span>&gt;</span>spring-boot-starter-mail<span class="tag">&lt;/<span class="name">artifactId</span>&gt;</span></span><br><span class="line"><span class="tag">&lt;/<span class="name">dependency</span>&gt;</span></span><br></pre></td></tr></table></figure>
</li>
<li><p>添加Email配置<br>在application.properties文件中添加如下的配置信息：</p>
<figure class="highlight clean"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line">###mail邮件配置 ##################################</span><br><span class="line">###邮箱主机</span><br><span class="line">spring.mail.host=smtp<span class="number">.126</span>.com</span><br><span class="line">###用户名</span><br><span class="line">spring.mail.username=邮箱地址</span><br><span class="line">###设置的授权码</span><br><span class="line">spring.mail.password=授权码</span><br><span class="line">###默认编码</span><br><span class="line">spring.mail.default-encoding=UTF<span class="number">-8</span></span><br><span class="line">spring.mail.properties.mail.smtp.auth=true</span><br><span class="line">spring.mail.properties.mail.smtp.starttls.enable=true</span><br><span class="line">spring.mail.properties.mail.smtp.starttls.required=true</span><br></pre></td></tr></table></figure>
</li>
<li><p>创建发送邮件的接口和实现类<br>在mail包下创建发送邮件的接口和实现类，具体代码如下：</p>
<figure class="highlight kotlin"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 发送用户邮件服务的接口</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">interface</span> <span class="title">ISendMailService</span> </span>&#123;</span><br><span class="line"></span><br><span class="line">    boolean sendMail(List&lt;AyUser&gt; ayUserList);</span><br><span class="line"></span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 发送用户邮件服务的实现类</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="meta">@Service</span></span><br><span class="line"><span class="keyword">public</span> <span class="class"><span class="keyword">class</span> <span class="title">SendMailServiceImpl</span> <span class="title">implements</span> <span class="title">ISendMailService</span> </span>&#123;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">public</span> static <span class="keyword">final</span> Logger logger = LogManager.getLogger(SendMailServiceImpl.<span class="keyword">class</span>);</span><br><span class="line"></span><br><span class="line">    <span class="comment">//JavaMailSender：邮件发送接口。在Spring Boot的Starter模块中已为此提供了自动化配置。</span></span><br><span class="line">    <span class="comment">//我们只需要通过注解@Autowired注入进来，即可使用</span></span><br><span class="line">    <span class="meta">@Autowired</span></span><br><span class="line">    JavaMailSender mailSender;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Resource</span></span><br><span class="line">    <span class="keyword">private</span> IAyUserService ayUserService;</span><br><span class="line"></span><br><span class="line">    <span class="comment">//@Value：可以将application.properties配置文件中的配置设置到属性中</span></span><br><span class="line">    <span class="meta">@Value(<span class="meta-string">"<span class="subst">$&#123;spring.mail.username&#125;</span>"</span>)</span></span><br><span class="line">    <span class="keyword">private</span> String fromUser;</span><br><span class="line"></span><br><span class="line">    <span class="meta">@Override</span></span><br><span class="line">    <span class="keyword">public</span> boolean sendMail(List&lt;AyUser&gt; ayUserList) &#123;</span><br><span class="line">        <span class="keyword">try</span>&#123;</span><br><span class="line">            <span class="keyword">if</span>(ayUserList == <span class="literal">null</span> || ayUserList.size() &lt;=<span class="number">0</span>) <span class="keyword">return</span> <span class="built_in">Boolean</span>.FALSE;</span><br><span class="line">            <span class="keyword">for</span>(AyUser user:ayUserList)&#123;</span><br><span class="line">                MimeMessage mimeMessage = <span class="keyword">this</span>.mailSender.createMimeMessage();</span><br><span class="line">                MimeMessageHelper messageHelper = new MimeMessageHelper(mimeMessage);</span><br><span class="line">                <span class="comment">//邮件发送方</span></span><br><span class="line">                messageHelper.setFrom(fromUser);</span><br><span class="line">                <span class="comment">//邮件主题</span></span><br><span class="line">                messageHelper.setSubject(<span class="string">"今日报价"</span>);</span><br><span class="line">                <span class="comment">//邮件接收方</span></span><br><span class="line">                messageHelper.setTo(<span class="string">""</span>);</span><br><span class="line">                <span class="comment">//邮件内容</span></span><br><span class="line">                messageHelper.setText(user.getName()+<span class="string">",您知道吗？今天又有新消息了！"</span>);</span><br><span class="line">                <span class="comment">//发送邮件</span></span><br><span class="line">                <span class="keyword">this</span>.mailSender.send(mimeMessage);</span><br><span class="line">            &#125;</span><br><span class="line">        &#125;<span class="keyword">catch</span> (Exception e)&#123;</span><br><span class="line">            logger.error(<span class="string">"SendMailServiceImpl error and user = %s"</span>,ayUserList,e);</span><br><span class="line">            <span class="keyword">return</span> <span class="built_in">Boolean</span>.FALSE;</span><br><span class="line">        &#125;</span><br><span class="line"></span><br><span class="line">        <span class="keyword">return</span> <span class="built_in">Boolean</span>.TRUE;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
</li>
<li><p>定时发送邮件<br>修改定时器类，完成定时发送邮件的功能，具体代码如下：</p>
<figure class="highlight d"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">/**</span></span><br><span class="line"><span class="comment"> * 定时器</span></span><br><span class="line"><span class="comment"> */</span></span><br><span class="line"><span class="keyword">@Configuration</span></span><br><span class="line"><span class="keyword">@Component</span></span><br><span class="line"><span class="keyword">@EnableScheduling</span></span><br><span class="line"><span class="keyword">public</span> <span class="keyword">class</span> SendMailQuartz &#123;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">final</span> Logger logger = LogManager.getLogger(SendMailQuartz.<span class="keyword">class</span>);</span><br><span class="line"></span><br><span class="line">    <span class="keyword">@Resource</span></span><br><span class="line">    <span class="keyword">private</span> ISendMailService sendMailService;</span><br><span class="line"></span><br><span class="line">    <span class="keyword">@Resource</span></span><br><span class="line">    <span class="keyword">private</span> IAyUserService ayUserService;</span><br><span class="line"></span><br><span class="line">    <span class="comment">//每5秒执行一次</span></span><br><span class="line">    <span class="keyword">@Scheduled</span>(cron = <span class="string">"*/5 * * * * *"</span>)</span><br><span class="line">    <span class="keyword">public</span> <span class="keyword">void</span> reportCurrentByCron()&#123;</span><br><span class="line">        logger.info(<span class="string">"定时器运行了!!!"</span>);</span><br><span class="line">        List&lt;AyUser&gt; ayUserList = ayUserService.findAll();</span><br><span class="line">        <span class="keyword">if</span>(ayUserList == <span class="literal">null</span> || ayUserList.size()&lt;=<span class="number">0</span>) <span class="keyword">return</span>;</span><br><span class="line">        <span class="comment">//发送邮件</span></span><br><span class="line">        sendMailService.sendMail(ayUserList);</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
</li>
<li><p>测试<br>重新启动项目，发送邮件定时器类SendMailQuartz每隔5秒会发送广告邮件给特定的用户。<br><img src="/blog/images/20190725171919561.jpg" alt="定时发送邮件测试"></p>
</li>
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              <div class="post-toc-content"><ol class="nav"><li class="nav-item nav-level-1"><a class="nav-link" href="#注意事项"><span class="nav-number">1.</span> <span class="nav-text">注意事项</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#Quartz定时器简介"><span class="nav-number">2.</span> <span class="nav-text">Quartz定时器简介</span></a></li><li class="nav-item nav-level-1"><a class="nav-link" href="#SpringBoot集成Quartz定时器"><span class="nav-number">3.</span> <span class="nav-text">SpringBoot集成Quartz定时器</span></a><ol class="nav-child"><li class="nav-item nav-level-2"><a class="nav-link" href="#引入依赖"><span class="nav-number">3.1.</span> <span class="nav-text">引入依赖</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#创建定时器"><span class="nav-number">3.2.</span> <span class="nav-text">创建定时器</span></a></li></ol></li><li class="nav-item nav-level-1"><a class="nav-link" href="#SpringBoot集成发送Email功能"><span class="nav-number">4.</span> <span class="nav-text">SpringBoot集成发送Email功能</span></a><ol class="nav-child"><li class="nav-item nav-level-2"><a class="nav-link" href="#Email介绍"><span class="nav-number">4.1.</span> <span class="nav-text">Email介绍</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#集成Email的步骤"><span class="nav-number">4.2.</span> <span class="nav-text">集成Email的步骤</span></a></li></ol></li></ol></div>
            

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                var articleUrl = decodeURIComponent(data.url);
                var indexOfTitle = [];
                var indexOfContent = [];
                // only match articles with not empty titles
                if(title != '') {
                  keywords.forEach(function(keyword) {
                    function getIndexByWord(word, text, caseSensitive) {
                      var wordLen = word.length;
                      if (wordLen === 0) {
                        return [];
                      }
                      var startPosition = 0, position = [], index = [];
                      if (!caseSensitive) {
                        text = text.toLowerCase();
                        word = word.toLowerCase();
                      }
                      while ((position = text.indexOf(word, startPosition)) > -1) {
                        index.push({position: position, word: word});
                        startPosition = position + wordLen;
                      }
                      return index;
                    }

                    indexOfTitle = indexOfTitle.concat(getIndexByWord(keyword, titleInLowerCase, false));
                    indexOfContent = indexOfContent.concat(getIndexByWord(keyword, contentInLowerCase, false));
                  });
                  if (indexOfTitle.length > 0 || indexOfContent.length > 0) {
                    isMatch = true;
                    hitCount = indexOfTitle.length + indexOfContent.length;
                  }
                }

                // show search results

                if (isMatch) {
                  // sort index by position of keyword

                  [indexOfTitle, indexOfContent].forEach(function (index) {
                    index.sort(function (itemLeft, itemRight) {
                      if (itemRight.position !== itemLeft.position) {
                        return itemRight.position - itemLeft.position;
                      } else {
                        return itemLeft.word.length - itemRight.word.length;
                      }
                    });
                  });

                  // merge hits into slices

                  function mergeIntoSlice(text, start, end, index) {
                    var item = index[index.length - 1];
                    var position = item.position;
                    var word = item.word;
                    var hits = [];
                    var searchTextCountInSlice = 0;
                    while (position + word.length <= end && index.length != 0) {
                      if (word === searchText) {
                        searchTextCountInSlice++;
                      }
                      hits.push({position: position, length: word.length});
                      var wordEnd = position + word.length;

                      // move to next position of hit

                      index.pop();
                      while (index.length != 0) {
                        item = index[index.length - 1];
                        position = item.position;
                        word = item.word;
                        if (wordEnd > position) {
                          index.pop();
                        } else {
                          break;
                        }
                      }
                    }
                    searchTextCount += searchTextCountInSlice;
                    return {
                      hits: hits,
                      start: start,
                      end: end,
                      searchTextCount: searchTextCountInSlice
                    };
                  }

                  var slicesOfTitle = [];
                  if (indexOfTitle.length != 0) {
                    slicesOfTitle.push(mergeIntoSlice(title, 0, title.length, indexOfTitle));
                  }

                  var slicesOfContent = [];
                  while (indexOfContent.length != 0) {
                    var item = indexOfContent[indexOfContent.length - 1];
                    var position = item.position;
                    var word = item.word;
                    // cut out 100 characters
                    var start = position - 20;
                    var end = position + 80;
                    if(start < 0){
                      start = 0;
                    }
                    if (end < position + word.length) {
                      end = position + word.length;
                    }
                    if(end > content.length){
                      end = content.length;
                    }
                    slicesOfContent.push(mergeIntoSlice(content, start, end, indexOfContent));
                  }

                  // sort slices in content by search text's count and hits' count

                  slicesOfContent.sort(function (sliceLeft, sliceRight) {
                    if (sliceLeft.searchTextCount !== sliceRight.searchTextCount) {
                      return sliceRight.searchTextCount - sliceLeft.searchTextCount;
                    } else if (sliceLeft.hits.length !== sliceRight.hits.length) {
                      return sliceRight.hits.length - sliceLeft.hits.length;
                    } else {
                      return sliceLeft.start - sliceRight.start;
                    }
                  });

                  // select top N slices in content

                  var upperBound = parseInt('1');
                  if (upperBound >= 0) {
                    slicesOfContent = slicesOfContent.slice(0, upperBound);
                  }

                  // highlight title and content

                  function highlightKeyword(text, slice) {
                    var result = '';
                    var prevEnd = slice.start;
                    slice.hits.forEach(function (hit) {
                      result += text.substring(prevEnd, hit.position);
                      var end = hit.position + hit.length;
                      result += '<b class="search-keyword">' + text.substring(hit.position, end) + '</b>';
                      prevEnd = end;
                    });
                    result += text.substring(prevEnd, slice.end);
                    return result;
                  }

                  var resultItem = '';

                  if (slicesOfTitle.length != 0) {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + highlightKeyword(title, slicesOfTitle[0]) + "</a>";
                  } else {
                    resultItem += "<li><a href='" + articleUrl + "' class='search-result-title'>" + title + "</a>";
                  }

                  slicesOfContent.forEach(function (slice) {
                    resultItem += "<a href='" + articleUrl + "'>" +
                      "<p class=\"search-result\">" + highlightKeyword(content, slice) +
                      "...</p>" + "</a>";
                  });

                  resultItem += "</li>";
                  resultItems.push({
                    item: resultItem,
                    searchTextCount: searchTextCount,
                    hitCount: hitCount,
                    id: resultItems.length
                  });
                }
              })
            };
            if (keywords.length === 1 && keywords[0] === "") {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-search fa-5x" /></div>'
            } else if (resultItems.length === 0) {
              resultContent.innerHTML = '<div id="no-result"><i class="fa fa-frown-o fa-5x" /></div>'
            } else {
              resultItems.sort(function (resultLeft, resultRight) {
                if (resultLeft.searchTextCount !== resultRight.searchTextCount) {
                  return resultRight.searchTextCount - resultLeft.searchTextCount;
                } else if (resultLeft.hitCount !== resultRight.hitCount) {
                  return resultRight.hitCount - resultLeft.hitCount;
                } else {
                  return resultRight.id - resultLeft.id;
                }
              });
              var searchResultList = '<ul class=\"search-result-list\">';
              resultItems.forEach(function (result) {
                searchResultList += result.item;
              })
              searchResultList += "</ul>";
              resultContent.innerHTML = searchResultList;
            }
          }

          if ('auto' === 'auto') {
            input.addEventListener('input', inputEventFunction);
          } else {
            $('.search-icon').click(inputEventFunction);
            input.addEventListener('keypress', function (event) {
              if (event.keyCode === 13) {
                inputEventFunction();
              }
            });
          }

          // remove loading animation
          $(".local-search-pop-overlay").remove();
          $('body').css('overflow', '');

          proceedsearch();
        }
      });
    }

    // handle and trigger popup window;
    $('.popup-trigger').click(function(e) {
      e.stopPropagation();
      if (isfetched === false) {
        searchFunc(path, 'local-search-input', 'local-search-result');
      } else {
        proceedsearch();
      };
    });

    $('.popup-btn-close').click(onPopupClose);
    $('.popup').click(function(e){
      e.stopPropagation();
    });
    $(document).on('keyup', function (event) {
      var shouldDismissSearchPopup = event.which === 27 &&
        $('.search-popup').is(':visible');
      if (shouldDismissSearchPopup) {
        onPopupClose();
      }
    });
  </script>





  

  

  

  
  

  

  

  

</body>
</html>
